And sometimes it is conceivable that it is permitted to reveal it, as when he knows that the bride has an internal illness which is not known to all, including the groom. But he must take care that all the conditions mentioned in Principle IX, section 2 are satisfied.
וְלִפְעָמִים יְצֻיַּר (טו) שֶׁמֻּתָּר לְגַלּוֹת, כֵּיוָן שֶׁהוּא יוֹדֵעַ שֶׁהַמְשֻׁדֶּכֶת יֵשׁ לָה מַחֲלָה פְּנִימִית, אֲשֶׁר אֵינָה גְּלוּיָה לַכֹּל, וְהֶחָתָן אֵינוֹ יוֹדֵעַ מִּזֶּה. אַךְ צָּרִיךְ לִזָּהֵר, שֶׁיֻּשְׁלְמוּ בָּזֶה הַפְּרָטִים הַנַּ"ל בִּכְלָל ט' סָעִיף ב'.
And sometimes it is conceivable that it is permitted to reveal it, as when he knows that the bride has an internal illness which is not known to all, including the groom. But he must take care that all the conditions mentioned in Principle IX, section 2 are satisfied.